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Fig. 11. Carnegie Embryo No. 2023

15 mm., female. X 12.

Stage 4, 11 to 15 mm. (fig. 5, fig. 7, male; fig. 6, fig. 11, female). In this stage the sex difference in the length of the urethral groove becomes clearly evident. But slight changes have taken place in the general shape of the genital tubercle. In the male (figs. 5, 7) the glans area is more clearly indicated than in the female (figs. 6, 1 1) . In both embryos the urethral groove is sharply outlined, making it possible to contrast its difference in length in the tvwo specimens. In the female the epithelial tag is more pronounced than in the male and the entire tubercle is slightly more swollen.

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Historic Disclaimer - information about historic embryology pages 
Mark Hill.jpg
Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Reference

Spaulding MH. The development of the external genitalia in the human embryo. (1921) Contrib. Embryol., Carnegie Inst. Wash. Publ. 81, 13: 69 – 88.


Cite this page: Hill, M.A. (2024, May 22) Embryology Spaulding-fig11.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Spaulding-fig11.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G


Reference

Spaulding MH. The development of the external genitalia in the human embryo. (1921) Contrib. Embryol., Carnegie Inst. Wash. Publ. 81, 13: 69 – 88.



Cite this page: Hill, M.A. (2024, May 22) Embryology Spaulding-fig11.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Spaulding-fig11.jpg

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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